U.S. patent number 11,067,077 [Application Number 16/234,600] was granted by the patent office on 2021-07-20 for rotating cylinder enthalpy-adding piston compressor and air conditioning system having same.
This patent grant is currently assigned to Gree Green Refrigeration Technology Center CO., LTD. of Zhuhai. The grantee listed for this patent is Gree Green Refrigeration Technology Center CO., LTD. of Zhuhai. Invention is credited to Zhongcheng Du, Yusheng Hu, Hui Huang, Lingchao Kong, Liping Ren, Jia Xu, Sen Yang.
United States Patent |
11,067,077 |
Huang , et al. |
July 20, 2021 |
Rotating cylinder enthalpy-adding piston compressor and air
conditioning system having same
Abstract
Disclosed is a rotating cylinder enthalpy-adding piston
compressor. The compressor is a two-stage rotating cylinder piston
compressor, including a first-stage rotating gas cylinder, a first
gas cylinder liner, a first piston, and a second-stage rotating gas
cylinder, a second gas cylinder liner, and a second piston, and
further including an enthalpy-adding assembly connected between the
first-stage rotating gas cylinder and the second-stage rotating gas
cylinder for supplying gas and adding enthalpy between the two
stages of rotating cylinders. By means of adopting a two-stage
rotating cylinder piston compressor and arranging an
enthalpy-adding assembly between the two stages of rotating
cylinders, an enthalpy-adding function is achieved for the rotating
cylinder piston compressor and the air conditioning system having
same, thereby increasing the enthalpy value of the refrigerant in
the system, improving the refrigerating and heating capabilities,
improving the energy efficiency ratio and enhancing the reliability
of the system.
Inventors: |
Huang; Hui (Zhuhai,
CN), Hu; Yusheng (Zhuhai, CN), Kong;
Lingchao (Zhuhai, CN), Du; Zhongcheng (Zhuhai,
CN), Yang; Sen (Zhuhai, CN), Xu; Jia
(Zhuhai, CN), Ren; Liping (Zhuhai, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
Gree Green Refrigeration Technology Center CO., LTD. of
Zhuhai |
Zhuhai |
N/A |
CN |
|
|
Assignee: |
Gree Green Refrigeration Technology
Center CO., LTD. of Zhuhai (Zhuhai, CN)
|
Family
ID: |
1000005686100 |
Appl.
No.: |
16/234,600 |
Filed: |
December 28, 2018 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20190249664 A1 |
Aug 15, 2019 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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PCT/CN2017/073159 |
Feb 9, 2017 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F04C
18/02 (20130101); F04C 23/001 (20130101); F04C
18/356 (20130101); F04C 18/32 (20130101); F04C
29/00 (20130101) |
Current International
Class: |
F04C
18/02 (20060101); F04C 23/00 (20060101); F04C
18/356 (20060101); F04C 18/32 (20060101); F04C
29/00 (20060101) |
Field of
Search: |
;62/510 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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103629112 |
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Mar 2014 |
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105114306 |
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Dec 2015 |
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CN |
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204877941 |
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Dec 2015 |
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CN |
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105508244 |
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Apr 2016 |
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CN |
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105570128 |
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May 2016 |
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CN |
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106168214 |
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Nov 2016 |
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CN |
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205955988 |
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Feb 2017 |
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CN |
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1979067273 |
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May 1979 |
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JP |
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1999125191 |
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May 1999 |
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JP |
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2000170678 |
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Jun 2000 |
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JP |
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2013029059 |
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Feb 2013 |
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JP |
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Primary Examiner: Alvare; Paul
Assistant Examiner: Oswald; Kirstin U
Attorney, Agent or Firm: Kilpatrick Townsend & Stockton
LLP
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATIONS
The application is a continuation application of PCT Patent
Application No. PCT/CN2017/073159, entitled "Rotating Cylinder
Enthalpy-Adding Piston Compressor and Air Conditioning System
Having Same", filed on Feb. 9, 2017, which claims priority to
Chinese Patent Application No. 201610509297.3, entitled "Rotating
Cylinder Enthalpy-Adding Piston Compressor and Air Conditioning
System Having Same", filed on Jun. 29, 2016, the entire contents of
which are incorporated herein by reference.
Claims
What is claimed is:
1. A rotating cylinder enthalpy-adding piston compressor,
comprising: a two-stage rotating cylinder piston compressor,
comprising: a first-stage rotating cylinder; a first cylinder
liner; a first piston; a second-stage rotating cylinder; a second
cylinder liner; a second piston; an enthalpy-adding assembly, which
is connected between the first-stage rotating cylinder and the
second-stage rotating cylinder, and which is configured to supply
gas and add enthalpy between two stages of rotating cylinders; and
an upper partition plate and a lower partition plate arranged
between the first cylinder liner and the second cylinder liner;
wherein two concavities with certain shapes are disposed between an
inner orifice and an outer circle of the lower partition plate, and
are coupled with the upper partition plate to form a first
intermediate cavity and a lower cylinder gas-intake cavity
respectively; one side of the outer circle has a lower partition
plate gas-intake port which communicates with the lower cylinder
gas-intake cavity, and another side of the outer circle has a lower
partition plate gas supplying port which communicates with the
first intermediate cavity; an end surface of the lower partition
plate is provided with a diagonal cut, and the diagonal cut is a
second lower partition plate port, which communicates with the
lower cylinder gas-intake cavity, and which is disposed at a
position corresponding to a gas-intake position of a lower cylinder
cavity and opposite to an upper partition plate gas-intake port
respectively; another side of the lower partition plate has a
groove, which is a discharge groove; a first lower partition plate
port is disposed adjacent to the discharge groove and is arranged
corresponding to a discharge position of the lower cylinder cavity,
and a discharge valve plate and a valve baffle are arranged at the
first lower partition plate port.
2. The rotating cylinder enthalpy-adding piston compressor
according to claim 1, wherein, the enthalpy-adding assembly
comprises an enthalpy-adding component provided outside the
compressor and an enthalpy-adding pipeline configured to connect
the enthalpy-adding component to an interior of the compressor.
3. The rotating cylinder enthalpy-adding piston compressor
according to claim 1, wherein, the lower partition plate is
provided with a refrigerant entry passage and a gas supplying
passage; and the enthalpy-adding pipeline communicates with the gas
supplying passage by means of the lower partition plate gas
supplying port.
4. The rotating cylinder enthalpy-adding piston compressor
according to claim 3, wherein, the first-stage cylinder gas-intake
cavity communicates with the refrigerant entry passage; and the
first intermediate cavity communicates with the gas supplying
passage and a discharge end of the first-stage rotating cylinder
respectively.
5. The rotating cylinder enthalpy-adding piston compressor
according to claim 1, wherein one side of the upper partition plate
is coupled with the second-stage rotating cylinder, the second
piston and the second cylinder liner; another side of the upper
partition plate is coupled with the lower partition plate; the
lower partition plate is further provided with the upper partition
plate gas-intake port with a certain angle, which communicates with
the lower cylinder gas-intake cavity defined in the lower partition
plate and is disposed at a position corresponding to a gas-intake
position of the second-stage rotating cylinder.
6. The rotating cylinder enthalpy-adding piston compressor
according to claim 1, wherein the discharge valve plate and the
valve baffle are fixed in a groove adjacent to the first lower
partition plate port with a valve screw, and the discharge valve
plate exactly covers the discharge port.
7. A rotating cylinder enthalpy-adding piston compressor,
comprising: a two-stage rotating cylinder piston compressor,
comprising: a first-stage rotating cylinder; a first cylinder
liner; a first piston; a second-stage rotating cylinder; a second
cylinder liner; a second piston; a lower flange; an enthalpy-adding
assembly, which is connected between the first-stage rotating
cylinder and the second-stage rotating cylinder, and which is
configured to supply gas and add enthalpy between two stages of
rotating cylinders; and an upper partition plate and a lower
partition plate arranged between the first cylinder liner and the
second cylinder liner; wherein a gas-intake port is further
provided radially in the lower flange, and a diameter of an outer
circle of the gas-intake port is identical with an inner diameter
of a casing; coupled with the lower cylinder, an end surface of the
lower flange is provided with a sunk groove of the gas-intake port,
which communicates with the gas-intake port provided radially; a
concavity with a certain shape is disposed between an inner orifice
and an outer circle of the lower partition plate, and is coupled
with the upper partition plate to form a first intermediate cavity;
a lower partition plate gas supplying port is radially opened to an
outer circle and communicates with the first intermediate cavity;
an end surface of the lower partition plate is provided with a
groove, which is a discharge groove; a first lower partition plate
port is disposed adjacent to the discharge groove and is arranged
corresponding a discharge position of the lower cylinder cavity; a
discharge valve plate and a valve baffle are arranged at the first
lower partition plate port.
8. The rotating cylinder enthalpy-adding piston compressor
according to claim 7, wherein the enthalpy-adding assembly
comprises an enthalpy-adding component provided outside the
compressor and an enthalpy-adding pipeline configured to connect
the enthalpy-adding component to an interior of the compressor.
9. The rotating cylinder enthalpy-adding piston compressor
according to claim 7, wherein, the lower partition plate is
provided with a gas supplying passage; the enthalpy-adding pipeline
communicates with the gas supplying passage; the compressor further
comprises a lower flange, and a refrigerant entry passage is
disposed in the lower flange.
10. The rotating cylinder enthalpy-adding piston compressor
according to claim 7, wherein, the refrigerant entry passage
communicates with a gas entry end of the first-stage rotating
cylinder; and the first intermediate cavity communicates with the
gas supplying passage and a discharge end of the first-stage
rotating cylinder respectively.
11. A rotating cylinder enthalpy-adding piston compressor,
comprising: a two-stage rotating cylinder piston compressor,
comprising: a first-stage rotating cylinder; a first cylinder
liner; a first piston; a second-stage rotating cylinder; a second
cylinder liner; a second piston; an enthalpy-adding assembly, which
is connected between the first-stage rotating cylinder and the
second-stage rotating cylinder, and which is configured to supply
gas and add enthalpy between two stages of rotating cylinders; an
intermediate partition plate arranged between the first cylinder
liner and the second cylinder liner; an upper flange; a lower
flange; and a lower cover plate; wherein coupled with the
second-stage rotating cylinder, an end surface of the upper flange
is provided with two sunk grooves, which are an upper flange
gas-intake port and a flow passage respectively; an opening is
disposed radially in the upper flange; the opening is configured to
be an upper flange gas supplying port which communicates with the
upper flange gas-intake port and the flow passage; a gas-intake
port is further provided radially in the lower flange, and a
diameter of an outer circle of the gas-intake port is identical
with an inner diameter of a casing; coupled with the first-stage
rotating cylinder, an end surface of the lower flange is provided
with a sunk groove of the gas-intake port and a sunk groove of the
lower flange discharge port; the sunk groove of the gas-intake port
communicates with the gas-intake port provided radially; a
discharge port is disposed adjacent to the sunk groove of a lower
flange discharge port; an upper end surface of the lower flange is
provided with a sunk concavity, which communicates with the
discharge port, and a second intermediate cavity is formed between
the sunk concavity and the lower cover plate; an edge of the second
intermediate cavity is provided with a kidney-shaped port, which is
a gas flow passage of the second intermediate cavity and
communicates with a flow passage of the first cylinder liner, a
flow passage of the intermediate partition plate and a flow passage
of the second cylinder liner.
12. The rotating cylinder enthalpy-adding piston compressor
according to claim 11, wherein a refrigerant entry passage is
disposed in the lower flange; a gas supplying passage is provided
in the upper flange; and an enthalpy-adding pipeline communicates
with the gas supplying passage.
13. The rotating cylinder enthalpy-adding piston compressor
according to claim 12, wherein the refrigerant entry passage
communicates with a gas entry end of the first-stage rotating
cylinder; the first cylinder liner communicates with the second
cylinder liner and the intermediate partition plate to form a flow
passage; one end of the flow passage communicates with the second
intermediate cavity, and another end of the flow passage
communicates with the gas supplying passage in the upper flange.
Description
TECHNICAL FIELD
The present invention relates to the technical field of compressor,
and more particularly, to a rotating cylinder enthalpy-adding
piston compressor and an air conditioning system having same.
BACKGROUND
In a conventional compressor of the prior art, the refrigerant
enters an air conditioning system after being compressed once, and
the system has poor low-temperature refrigerating and
high-temperature heating capabilities.
The two-stage enthalpy-adding technology has been applied to air
conditioning systems and heat pump systems to some extent, the
technology has been implemented in a rolling rotor compressor, and
a rotating cylinder compressor has been previously proposed, but no
related structures are found in a rotating cylinder piston
compressor.
In view of the technical problems existing in the prior art
rotating cylinder piston compressor and air conditioning system,
such as poor refrigerating and heating capabilities, a low energy
efficiency ratio and a poor reliability, the present invention
develops and designs a rotating cylinder enthalpy-adding piston
compressor and an air conditioning system having same.
SUMMARY OF THE INVENTION
Thus, the present invention aims to solve the technical problems so
as to overcome the defect of lower energy efficiency existing in
the prior art rotating cylinder piston compressor, and provides a
rotating cylinder enthalpy-adding piston compressor and an air
conditioning system having same.
The present invention provides a rotating cylinder enthalpy-adding
piston compressor, which is a two-stage rotating cylinder piston
compressor, including a first-stage rotating cylinder, a first
cylinder liner, and a first piston, a second-stage rotating
cylinder, a second cylinder liner and a second piston, and further
including an enthalpy-adding assembly, which is connected between
the first-stage rotating cylinder and the second-stage rotating
cylinder, and which is configured to supply gas and add enthalpy
between the two stages of rotating cylinders.
Preferably, the enthalpy-adding assembly includes an
enthalpy-adding component provided outside the compressor and an
enthalpy-adding pipeline configured to connect the enthalpy-adding
component to an interior of the compressor.
Preferably, the rotating cylinder enthalpy-adding piston compressor
further includes a partition plate arranged between the first
cylinder liner and the second cylinder liner.
Preferably, the partition plate includes an upper partition plate
and a lower partition plate.
Preferably, the lower partition plate is provided with a
refrigerant entry passage and a gas supplying passage; and the
enthalpy-adding pipeline communicates with the gas supplying
passage.
Preferably, the lower partition plate is provided with a concavity,
and a first-stage cylinder gas-intake cavity and a first
intermediate cavity are formed between the concavity and the upper
partition plate.
Preferably, the first-stage cylinder gas-intake cavity communicates
with the refrigerant entry passage; and the first intermediate
cavity communicates with the gas supplying passage and a discharge
end of the first-stage rotating cylinder respectively.
Preferably, the lower partition plate is provided with a gas
supplying passage; the enthalpy-adding pipeline communicates with
the gas supplying passage; the compressor further comprises a lower
flange, and a refrigerant entry passage is disposed in the lower
flange.
Preferably, the lower partition plate is provided with a concavity,
and a first intermediate cavity is formed between the concavity and
the upper partition plate.
Preferably, the refrigerant entry passage communicates with a gas
entry end of the first-stage rotating cylinder; and the first
intermediate cavity communicates with the gas supplying passage and
a discharge end of the first-stage rotating cylinder
respectively.
Preferably, the partition plates comprises an intermediate
partition plate; the compressor further includes an upper flange
and a lower flange; a refrigerant entry passage is disposed in the
lower flange, and a gas supplying passage is provided in the upper
flange; and the enthalpy-adding pipeline communicates with the gas
supplying passage.
Preferably, the rotating cylinder enthalpy-adding piston compressor
further includes a lower cover plate; a second intermediate cavity
is formed between the lower flange and the lower cover plate.
Preferably, the refrigerant entry passage communicates with a gas
entry end of the first-stage rotating cylinder; the first cylinder
liner communicates with the second cylinder liner and the
intermediate partition plate to form a flow passage; one end of the
flow passage communicates with the second intermediate cavity, and
another end of the flow passage communicates with the gas supplying
passage in the upper flange.
The present invention further provides an air conditioning system
comprising the rotating cylinder enthalpy-adding piston compressor
above.
The rotating cylinder enthalpy-adding piston compressor and the air
conditioning system with the same provided by the present invention
have the beneficial effects as follows:
According to the rotating cylinder enthalpy-adding piston
compressor of the present invention, by means of adopting a
two-stage rotating cylinder piston compressor and arranging an
enthalpy-adding assembly between the two stages of rotating
cylinders, the enthalpy-adding function can be achieved, thereby
increasing the enthalpy value of the refrigerant in the system,
improving refrigerating and heating capabilities, improving the
energy efficiency ratio and enhancing the reliability of the
system.
DRAWINGS
FIG. 1 is a schematic structural assembly diagram of a rotating
cylinder enthalpy-adding piston compressor according to the first
embodiment of the present invention;
FIG. 2 is a schematic exploded diagram of a pump body assembly of
the rotating cylinder enthalpy-adding piston compressor according
to the first embodiment of the present invention;
FIG. 3 shows schematic structural diagrams of the assembled pump
body of the rotating cylinder enthalpy-adding piston compressor
according to the first embodiment of the present invention;
wherein, FIG. 3 (a) is a schematic stereo structural diagram of the
pump body assembly; FIG. 3(b) is a front longitudinal sectional
view of the pump body assembly; FIG. 3(c) is a side longitudinal
sectional view of the pump body assembly; FIG. 3(d) is a top cross
sectional view of the upper cylinder; FIG. 3(e) is a top cross
sectional view of the lower cylinder;
FIG. 4 shows schematic structural diagrams of the upper partition
plate of the rotating cylinder enthalpy-adding piston compressor
according to the first embodiment of the present invention;
wherein, FIG. 4(a) is a schematic stereo diagram of the upper
partition plate; FIG. 4(b) is a top schematic view of the upper
partition plate; FIG. 4(c) is a cross-sectional view along the line
B-B of FIG. 4(b);
FIG. 5 shows schematic structural diagrams of the lower partition
plate of the rotating cylinder enthalpy-adding piston compressor
according to the first embodiment of the present invention;
wherein, FIG. 5(a) is a schematic stereo diagram of the lower
partition plate; FIG. 5(b) is a top view of the lower partition
plate; FIG. 5(c) is a cross-sectional view along the line A-A of
FIG. 5(b); FIG. 5(d) is a bottom view of FIG. 5(a);
FIG. 6 is a schematic structural assembly diagram of the rotating
cylinder enthalpy-adding piston compressor according to the second
embodiment of the present invention;
FIG. 7 is a schematic exploded diagram of a pump body assembly of
the rotating cylinder enthalpy-adding piston compressor according
to the second embodiment of the present invention;
FIG. 8 shows schematic structural assembly diagrams of the
assembled pump body of the rotating cylinder enthalpy-adding piston
compressor according to the second embodiment of the present
invention;
wherein, FIG. 8 (a) is a schematic stereo structural diagram of the
pump body assembly; FIG. 8(b) is a front longitudinal sectional
view of the pump body assembly;
FIG. 9 shows schematic structural diagrams of the upper flange of
the rotating cylinder enthalpy-adding piston compressor according
to the second embodiment of the present invention;
wherein, FIG. 9(a) is a schematic stereo diagram of the upper
flange; FIG. 9(b) is a top schematic view of the upper flange; FIG.
9(c) is a cross-sectional view along the line C-C of FIG. 9(b);
FIG. 9(d) is a bottom view of FIG. 9(a);
FIG. 10 shows schematic structural diagrams of the lower flange of
the rotating cylinder enthalpy-adding piston compressor according
to the second embodiment of the present invention;
wherein, FIG. 10(a) is a schematic stereo diagram of the lower
flange; FIG. 10(b) is a top view of the lower flange; FIG. 10(c) is
a cross-sectional view along the line D-D of FIG. 10(b); FIG. 10(d)
is a bottom view of FIG. 10(a);
FIG. 11 shows schematic structural diagrams of the upper cylinder
liner of the rotating cylinder enthalpy-adding piston compressor
according to the second embodiment of the present invention;
wherein, FIG. 11(a) is a schematic stereo diagram of the upper
cylinder liner; FIG. 11(b) is a top schematic view of the upper
cylinder liner;
FIG. 12 shows schematic structural diagrams of the lower cylinder
liner of the rotating cylinder enthalpy-adding piston compressor
according to the second embodiment of the present invention;
wherein, FIG. 12(a) is a schematic stereo diagram of the lower
cylinder liner; FIG. 12(b) is a top schematic view of the lower
cylinder liner;
FIG. 13 shows schematic structural diagrams of the intermediate
partition plate of the rotating cylinder enthalpy-adding piston
compressor according to the second embodiment of the present
invention;
wherein, FIG. 13(a) is a schematic stereo diagram of the
intermediate partition plate;
FIG. 13(b) is a top schematic view of the intermediate partition
plate;
FIG. 14 shows schematic structural diagrams of the lower cover
plate of the rotating cylinder enthalpy-adding piston compressor
according to the second embodiment of the present invention;
wherein, FIG. 14(a) is a schematic stereo diagram of the lower
cover plate; FIG. 14(b) is a top schematic view of the lower cover
plate;
FIG. 15 is a schematic structural assembly diagram of the rotating
cylinder enthalpy-adding piston compressor according to the third
embodiment of the present invention;
FIG. 16 is a schematic exploded diagram of the pump body assembly
of the rotating cylinder enthalpy-adding piston compressor
according to the third embodiment of the present invention;
FIG. 17 is a schematic structural diagram of the assembled pump
body of the rotating cylinder enthalpy-adding piston compressor
according to the third embodiment of the present invention;
FIG. 18 shows schematic structural diagrams of the lower flange of
the rotating cylinder enthalpy-adding piston compressor according
to the third embodiment of the present invention;
wherein, FIG. 18(a) is a schematic stereo diagram of the lower
flange; FIG. 18(b) is a top view of the lower flange; FIG. 18(c) is
a cross-sectional view along the line E-E of FIG. 18(b); FIG. 18(d)
is a bottom view of FIG. 18(a);
FIG. 19 shows schematic structural diagrams of the lower partition
plate of the rotating cylinder enthalpy-adding piston compressor
according to the third embodiment of the present invention;
wherein, FIG. 19(a) is a schematic stereo diagram of the lower
partition plate; FIG. 19(b) is a top view of the lower partition
plate; FIG. 19(c) is a cross-sectional view along the line F-F of
FIG. 19(b); FIG. 19(d) is a bottom view of FIG. 19(a).
The reference numerals in the Figures are indicated as:
1--first-stage rotating cylinder (or lower cylinder), 1a--first
lower partition plate port, 1b--second lower partition plate port,
2--first cylinder liner (or lower cylinder liner), 3--first piston
(or lower piston), 4--second-stage rotating cylinder (or upper
cylinder), 41--upper partition plate gas-intake port, 5--second
cylinder liner (or upper cylinder liner), 6--second piston (or
upper piston), 7--enthalpy-adding assembly, 71--enthalpy-adding
component, 72--enthalpy-adding pipeline, 81--upper partition plate,
82--lower partition plate, 83--intermediate partition plate,
9--refrigerant entry passage, 10--gas supplying passage, 101--lower
partition plate gas supplying port, 11--first-stage cylinder
gas-intake cavity (or lower cylinder gas-intake cavity),
1201--first intermediate cavity, 1202--second intermediate cavity,
121--gas flow passage of the intermediate cavity, 13--lower flange,
131--gas-intake port of lower flange, 132--sunk groove of lower
flange discharge port, 133--sunk groove of the lower flange
gas-intake port, 14--upper flange, 141--upper flange discharge
port, 142--upper flange gas-intake port, 1401--upper flange gas
supplying port 15--lower cover plate, 16--flow passage,
17--rotation shaft, 18--upper retainer assembly of needle roller,
19--lower retainer assembly of needle roller, 20--liquid separator,
21--lower partition plate gas-intake port.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in FIGS. 1-19, the present invention provides a rotating
cylinder enthalpy-adding piston compressor. It is a two-stage
rotating cylinder piston compressor, including a first-stage
rotating cylinder 1, a first cylinder liner 2, and a first piston
3, a second-stage rotating cylinder 4, a second cylinder liner 5
and a second piston 6, and further including an enthalpy-adding
assembly 7, which is connected between the first-stage rotating
cylinder 1 and the second-stage rotating cylinder 4, and which is
configured to supply gas and add enthalpy between the two stages of
rotating cylinders. By means of adopting the two-stage rotating
cylinder piston compressor and arranging the enthalpy-adding
assembly between the two stages of rotating cylinders, the rotating
cylinder enthalpy-adding piston compressor of the present invention
can achieve the enthalpy-adding function, thereby increasing the
enthalpy value of the refrigerant in the system, improving
refrigerating and heating capabilities, improving the energy
efficiency ratio and enhancing the reliability of the system.
Preferably, the enthalpy-adding assembly 7 is known in the art and
includes an enthalpy-adding component 71 provided outside the
compressor and an enthalpy-adding pipeline 72, which is configured
to connect the enthalpy-adding component 71 to the interior of the
compressor. As shown in FIG. 1, the enthalpy-adding component 71 is
a liquid storage tank. By means of the enthalpy-adding assembly
comprising the enthalpy-adding component and the enthalpy-adding
pipeline connected therewith, the enthalpy-adding component conveys
the medium-pressure refrigerant into the compressor through the
enthalpy-adding pipeline, thereby realizing the functions and the
effects of supplying gas and adding enthalpy.
Preferably, the rotating cylinder enthalpy-adding piston compressor
further includes partition plates arranged between the first
cylinder liner 2 and the second cylinder liner 5. The partition
plates are disposed between the first cylinder liner and the second
cylinder liner, which enables partition plates to effectively form
isolation and a barrier between the two cylinder liners, thereby
preventing mutual interferences caused by the movements of the
cylinder liners, effectively reducing vibrations and noises. What's
more, the structure of the partition plate provides a structural
condition for providing a gas supplying passage and a low-pressure
gas-intake passage.
Preferably, the partition plates include an upper partition plate
81 and a lower partition plate 82. Through the structure form of
the partition plates including the upper partition plate and the
lower partition plate, the upper partition plate can isolate and
block the upper cylinder liner, and the lower partition plate can
isolate and block the lower cylinder liner. During the operation of
the two cylinders, the two partition plates can effectively isolate
the two cylinders, thereby preventing interacts on the two
cylinders. What's more, the upper partition plate and the lower
partition plate can provide a structural condition for providing
the gas supplying passage and the low-pressure gas-intake
passage.
Preferably, the lower partition plate 82 is provided with a
refrigerant entry passage 9 and a gas supplying passage 10. The
enthalpy-adding pipeline 72 communicates with the gas supplying
passage 10. The specific executive means of the first embodiment of
the present invention are as follows: the refrigerant entry passage
and the gas supplying passage are disposed in the lower partition
plate, and the enthalpy-adding pipeline communicates with the gas
supplying passage, which enables the low-pressure high-temperature
refrigerant from outside to be introduced, through the lower
partition plate, into the compressor and be compressed in the
compressor, and enables the medium-pressure refrigerant to be
introduced, through the lower partition plate, into the compressor
to supply gas refrigerant and increase refrigerant enthalpy,
thereby improving the refrigerating and heating capacities and the
energy efficiency of the compressor, and even of the air
conditioning system.
Preferably, the lower partition plate 82 is provided with a
concavity, and a first-stage cylinder gas-intake cavity 11 (namely,
a lower cylinder gas-intake cavity) and a first intermediate cavity
1201 are formed between the concavity and the upper partition plate
81. The concavity provided in the lower partition plate, which
enables the first-stage cylinder gas-intake cavity 11 and the first
intermediate cavity 1201 to be formed between the concavity and the
upper partition plate, thereby providing a structural condition for
storing the sucked low-pressure gas and storing the supplied
medium-pressure gas of the compressor.
Preferably, the first-stage cylinder gas-intake cavity 11
communicates with the refrigerant entry passage 9. The first
intermediate cavity 1201 communicates with the gas supplying
passage 10 and the discharge end of the first-stage rotating
cylinder 1 respectively. The first-stage cylinder gas-intake cavity
11 communicates with the refrigerant entry passage 9, which enables
the low-pressure low-temperature refrigerant that enters the
compressor through the refrigerant entry passage 9 from outside to
be stored in the first-stage cylinder gas-intake cavity 11, thereby
providing conditions for further compressing the refrigerant in the
first-stage cylinder 1. The first intermediate cavity 1201
communicates with the gas supplying passage 10 and the discharge
end of the first-stage rotating cylinder 1 respectively, which
enables the refrigerant that is discharged from the discharge end
of the first-stage cylinder 1 to be mixed in the first intermediate
cavity 1201 with the refrigerant from the gas supplying passage 10,
and to be stored in the intermediate cavity, thereby realizing the
functions of mixing the supplied medium-pressure gas, and providing
conditions for the second-stage compression.
Preferably, the lower partition plate 82 is provided with a gas
supplying passage 10. The enthalpy-adding pipeline 72 communicates
with the gas supplying passage 10. The compressor further includes
a lower flange 13, and a refrigerant entry passage 9 is disposed in
the lower flange 13. The specific executive means of the third
embodiment of the present invention are as follows: the gas
supplying passage is disposed in the lower partition plate, and the
enthalpy-adding pipeline 72 communicates with the gas supplying
passage 10, which enables the medium-pressure refrigerant to be
introduced, through the lower partition plate 82, into the
compressor to realize the function of supplying gas and adding
enthalpy, thereby improving the refrigerating and heating
capacities and the energy efficiency of the compressor and even of
the air conditioning system; the lower flange 13 is provided with
the refrigerant entry passage, which enables the outside
low-pressure high-temperature refrigerant from outside to be
introduced into the compressor through the lower flange 13, and to
be compressed in the compressor.
Preferably, the lower partition plate 82 is provided with a
concavity, and a first intermediate cavity 1201 is formed between
the concavity and the upper partition plate 81. The concavity is
disposed on the lower partition plate 82, which enables the
first-stage cylinder gas-intake cavity 11 and the first
intermediate cavity 1201 to be formed between the concavity and the
upper partition plate 81, thereby providing a structural condition
for storing the sucked low-pressure gas and storing the supplied
medium-pressure gas of the compressor.
Preferably, the refrigerant entry passage 9 communicates with the
gas entry end of the first-stage rotating cylinder 1. The first
intermediate cavity 1201 communicates with the gas supplying
passage 10 and the discharge end of the first-stage rotating
cylinder 1 respectively. The gas-intake end of the first-stage
rotating cylinder communicates with the refrigerant entry passage,
which enables the low-pressure low-temperature refrigerant that
enters the compressor through the refrigerant entry passage from
outside to be sent into and compressed in the first-stage cylinder.
The first intermediate cavity 1201 communicates with the gas
supplying passage 10 and the discharge end of the first-stage
rotating cylinder 1 respectively, which enables the refrigerant
discharged from the discharge end of the first-stage rotating
cylinder 1 to be mixed in the first intermediate cavity 1201 with
the refrigerant from the gas supplying passage 10, and to be stored
in the intermediate cavity, thereby realizing the functions of
mixing the supplied medium-pressure gas, and providing conditions
for the second-stage compression.
Preferably, the partition plates include an intermediate partition
plate 83; the compressor further includes an upper flange 14 and a
lower flange 13. A refrigerant entry passage 9 is disposed in the
lower flange 13, and a gas supplying passage 10 is provided in the
upper flange 14. The enthalpy-adding pipeline 72 communicates with
the gas supplying passage 10. The specific executive means of the
second embodiment of the present invention are as follows: the gas
supplying passage 10 is disposed in the upper flange 14, and the
enthalpy-adding pipeline communicates with the gas supplying
passage 10, which enables the medium-pressure refrigerant to be
introduced, through the upper flange 14, into the compressor to
realize the function of supplying gas and adding enthalpy, thereby
improving the refrigerating and heating capacities and the energy
efficiency of the compressor and even of the air conditioning
system; the lower flange 13 is provided with the refrigerant entry
passage 9, which enables the low-pressure high-temperature
refrigerant from outside to be introduced into the compressor
through the lower flange 13, and to be compressed in the
compressor.
Preferably, the compressor further includes a lower cover plate 15.
The lower flange 13 is provided with a sunk concavity, and a second
intermediate cavity 1202 is formed between the sunk concavity and
the lower cover plate 15. The lower flange 13 is provided with the
sunk concavity, which enables the first-stage cylinder gas-intake
cavity 11 and the second intermediate cavity 1202 to be formed
between the sunk concavity and the lower cover plate 15, thereby
providing the structural conditions for storing the sucked
low-pressure gas, and storing the supplied medium-pressure gas of
the compressor.
Preferably, the refrigerant entry passage 9 communicates with a gas
entry end of the first-stage rotating cylinder 1. The first
cylinder liner 2 communicated with the second cylinder liner 5 and
the intermediate partition plate 83 to form a flow passage 16. One
end of the flow passage 16 communicates with the first intermediate
cavity 1201, and the other end of the flow passage 16 communicates
with the gas supplying passage 10 in the upper flange 14. The gas
entry end of the first-stage rotating cylinder communicates with
the refrigerant entry passage, which enables the low-pressure
low-temperature refrigerant that enters the compressor through the
refrigerant entry passage from outside to be sent into and
compressed in the first-stage cylinder. The first cylinder liner
communicates with the second cylinder liner and the intermediate
partition plate to form the flow passage, and one end of the flow
passage communicates with the first intermediate cavity 1201, and
the other end of the flow passage communicates with the gas
supplying passage 10 in the upper flange 14, which enables the
first intermediate cavity 1201 to communicate with the gas
supplying passage 10 through the flow passage 9, and enables the
refrigerant discharged from the intermediate cavity to be mixed
with the refrigerant from the gas supplying passage and to be
stored, thereby realizing the function of mixing the supplied
medium-pressure gas, and further providing conditions for the
second-stage compression.
The present invention also provides an air conditioning system
comprising said rotating cylinder enthalpy-adding piston
compressor. By means of adopting the two-stage rotating cylinder
piston compressor and adopting a structure of the enthalpy-adding
assembly arranged between two stages of rotating cylinders, the
rotating cylinder enthalpy-adding piston compressor and the air
conditioning system with the same of the present invention can
achieve the function of adding enthalpy, thereby adding the
refrigerant enthalpy of the system, improving refrigerating and
heating capabilities of the system, and improving the energy
efficiency ratio and the reliability of the system.
The working principle and the preferred embodiments of the present
invention will be described thereafter.
The present invention adopts two-stage enthalpy-adding technology
on the basis of the double-cylinder rotating cylinder compressor,
and the specific implementations are as follows:
The first embodiment is shown in FIGS. 1-5:
the compressor pump body mainly includes an upper flange 14, a
rotation shaft 17, an upper piston 6, an upper cylinder 4, an upper
cylinder liner 5, an upper retainer assembly of needle roller 18, a
lower flange 13, a lower piston 3, a lower cylinder 1, a lower
cylinder liner 2, a lower retainer assembly of needle roller 19, an
upper partition plate 81 and a lower partition plate 82, and the
assembly method is shown in FIG. 2.
The upper partition plate 81 is a flat plate with a certain
roughness requirement. One side of the upper partition plate 81 is
coupled with the upper cylinder 4, the upper piston 6 and the upper
cylinder liner 5; the other side of the upper partition plate is
coupled with the lower partition plate 82; the center of the upper
partition plate 81 has a through orifice with a diameter slightly
greater than the diameter of the piston bearing element of the
rotation shaft; the lower partition plate 82 is further provided
with a upper partition plate gas-intake port 41 with a certain
angle, which communicates with the lower cylinder gas-intake cavity
11 defined in the lower partition plate 82 and is disposed at the
position corresponding to the gas-intake position of the upper
cylinder 4. See FIGS. 4 and 3.
Two concavities with certain shapes are disposed between an inner
orifice and an outer circle of the lower partition plate 82, and
are coupled with the upper partition plate 81 to form the first
intermediate cavity 1201 and a lower cylinder gas-intake cavity 11
respectively. One side of the outer circle has a lower partition
plate gas-intake port 21 which communicates with the lower cylinder
gas-intake cavity 11, and the other side of the outer circle has a
lower partition plate gas supplying port 101 which communicates
with the first intermediate cavity 1201. The end surface of the
lower partition plate 82 is provided with a diagonal cut, namely,
the a second lower partition plate port 1b, which communicates with
the lower cylinder gas-intake cavity 11, and which is disposed at
the position corresponding to gas-intake position of the lower
cylinder cavity and opposite to the upper partition plate
gas-intake port 41 respectively. The other side of the lower
partition plate 82 has a groove, which is a discharge groove. A
first lower partition plate port 1a is disposed adjacent to the
discharge groove and is arranged corresponding to the discharge
position of the lower cylinder cavity. A discharge valve plate and
a valve baffle are arranged at the first lower partition plate port
1a and are fixed in the groove adjacent to the first lower
partition plate port 1a with a valve screw, so that the discharge
valve plate could exactly cover the first lower partition plate
port 1a. See FIG. 5.
The operating principle of the compressor is as follows:
The refrigerant from the liquid separator 20 enters the gas-intake
cavity through the gas-intake port 21 in the lower partition plate
82, then enters the lower cylinder cavity through the lower
cylinder gas-intake port; after being compressed by the lower
cylinder, the refrigerant enters the first intermediate cavity 1201
through the lower cylinder discharge port; and the first-stage
compression of the refrigerant is completed;
The supplied enthalpy-adding gas from the enthalpy-adding component
71 enters the first intermediate cavity 1201 through the lower
partition plate gas supplying port 101, and is mixed with the
first-stage compressed refrigerant, reducing the temperature of the
sucked gas of the second-stage compression; the mixed gas enters
the upper cylinder cavity through the upper partition plate
gas-intake port 41 in the upper partition plate, and after being
compressed by the upper cylinder 4, the supplied enthalpy-adding
gas is finally discharged from the upper flange discharge port 141;
and the second-stage compression is completed.
See FIGS. 1 and 3.
The second embodiment is shown in FIGS. 6-14:
The compressor pump body includes a rotation shaft 17, an upper
flange 14, an upper cylinder liner 5, an upper cylinder 4, an upper
piston 6, an upper retainer assembly of needle roller 18, an
intermediate partition plate 83, a lower cylinder liner 2, a lower
cylinder 1, and a lower piston 3, a lower retainer assembly of
needle roller 19, a lower flange 13, a lower cover plate 15, and
the assembly method is shown in FIG. 8.
The upper flange has a single-cylinder full-bearing structure, and
is further provided with a flow passage 16 and an upper flange
gas-intake port 142. Coupled with the upper cylinder 4, an end
surface of the upper flange 14 is provided with two sunk grooves,
which are the upper flange gas-intake port 142 and the flow passage
16 respectively. An opening is disposed radially in the upper
flange 14. The opening is configured to be an upper flange gas
supplying port 1401 which communicates with the upper flange
gas-intake port 142 and the sunk groove of the flow passage 16. See
FIG. 10.
A gas-intake port 131 is further provided radially in the lower
flange 13, and the diameter of the outer circle of the gas-intake
port 131 is identical with the inner diameter of the casing;
coupled with the lower cylinder 1, an end surface of the lower
flange 13 is provided with a sunk groove 133 of the gas-intake port
131 and a sunk groove 132 of the lower flange discharge port. The
sunk groove 133 of the gas-intake port 131 communicates with the
gas-intake port 131 provided radially; a discharge port is disposed
adjacent to the sunk groove 132 of the lower flange discharge port;
an upper end surface of the lower flange 13 is provided with a sunk
concavity, which communicates with the discharge port, and a second
intermediate cavity 1202 is formed between the sunk concavity and
the lower cover plate 15; an edge of the second intermediate cavity
1202 is provided with a kidney-shaped port, which is a gas flow
passage 121 of the second intermediate cavity 1202 and communicates
with the flow passage of the lower cylinder liner 2, the flow
passage of the intermediate partition plate 83 and the flow passage
of the upper cylinder liner 5. See FIG. 10.
The upper cylinder liner 5, the lower cylinder liner 2 and the
intermediate partition plate 83 are respectively further provided
with a flow passage communicating with the second intermediate
cavity 1202 on the lower flange 13.
The lower cover plate 15 is a flat plate with certain roughness
requirement. One side of the lower cover plate 15 is coupled with
the lower flange 13 to form the second intermediate cavity 1202; a
thorough orifice is disposed in the center of the lower cover plate
15, and the diameter of the thorough orifice is slightly greater
than the outer diameter of the boss of the lower flange 13. See
FIG. 14.
The operating principle of the compressor is:
The refrigerant from the liquid separator 20 enters the lower
cylinder cavity through the gas-intake port 131 in the lower flange
13 and the gas-intake port of the lower cylinder, and after being
compressed in the lower cylinder 1, the refrigerant enters the
second intermediate cavity 1202 through the lower cylinder
discharge port, and the first-stage compression of the refrigerant
is completed;
The refrigerant in the second intermediate cavity 1202 enters the
gas-intake passage of the upper flange through the flow passage 121
of the lower flange 13, the flow passage of the lower cylinder
liner 2, the flow passage of the intermediate partition plate 83,
the flow passage of the upper cylinder liner 5, and the flow
passage 16 of the upper flange 14, and is mixed with the
refrigerant entering from the upper flange gas supplying port 1401,
reducing the temperature of the sucked gas of the second-stage
compression; the mixed gas enters the upper cylinder cavity, and
finally, after being compressed by the upper cylinder 4, the
refrigerant is discharged from the upper flange discharge port 141;
and the second-stage compression is completed. See FIG. 8.
The third embodiment is shown in FIGS. 15-19:
The compressor pump body includes a rotation shaft 17, an upper
flange 14, an upper cylinder liner 5, an upper cylinder 4, an upper
piston 6, an upper retainer assembly of needle roller 18, an upper
partition plate 81, a lower partition plate 82, a lower cylinder
liner 2, a lower cylinder 1, a lower piston 3, a lower retainer
assembly of needle roller 19 and a lower flange 13, and the
assembly method is shown in FIG. 16.
What different from the first embodiment is that:
A gas-intake port 131 is further provided radially in the lower
flange 13, and the diameter of an outer circle of the gas-intake
port 131 is identical with the inner diameter of a casing; coupled
with the lower cylinder 1, an end surface of the lower flange 13 is
provided with a sunk groove 133 of the gas-intake port 131, which
communicates with the gas-intake port 131 provided radially; see
FIG. 18.
A concavity with a certain shape is disposed between an inner
orifice and an outer circle of the lower partition plate 82, and is
coupled with the upper partition plate 81 to form a first
intermediate cavity 1201. A lower partition plate gas supplying
port 101 is radially opened to the outer circle and communicates
with the first intermediate cavity 1201. The end surface of the
lower partition plate 82 is provided with a groove, which is a
discharge groove. A first lower partition plate port 1a is disposed
adjacent to the discharge groove and is arranged corresponding the
discharge position of the lower cylinder cavity; a discharge valve
plate and a valve baffle are arranged at the first lower partition
plate port 1a and are fixed in the groove at the first lower
partition plate port 1a with a valve screw, so that the discharge
valve plate could exactly cover the first lower partition plate
port 1a. See FIG. 19.
The operating principle of the compressor is as follows:
the refrigerant from the liquid separator 20 enters the lower
cylinder cavity through the gas-intake port 131 of the lower flange
and the lower cylinder gas-intake port; after being compressed by
the lower cylinder 1, the refrigerant enters the first intermediate
cavity 1201 of the lower partition plate 82 through the lower
cylinder discharge port; and the first-stage compression of the
refrigerant is completed;
the supplied enthalpy-adding gas from the enthalpy-adding component
71 enters the first intermediate cavity 1201 through the lower
partition plate gas supplying port 101, and is mixed with the
first-stage compressed refrigerant, reducing the temperature of the
sucked gas of the second-stage compression; the mixed gas enters
the upper cylinder cavity through the upper partition plate
gas-intake port 41 in the upper partition plate 81; after being
compressed by the upper cylinder 4, the supplied enthalpy-adding
gas is finally discharged from the upper flange discharge port; and
the second-stage compression is completed. See FIG. 17.
* * * * *